Preprint Article Version 1 This version is not peer-reviewed

# Acoustic Parametric Signal Generation for Underwater Communication

Version 1 : Received: 25 May 2018 / Approved: 28 May 2018 / Online: 28 May 2018 (09:42:15 CEST)

A peer-reviewed article of this Preprint also exists.

Campo-Valera, M.; Ardid, M.; Tortosa, D.D.; Felis, I.; Martínez-Mora, J.A.; Llorens, C.D.; Cervantes, P. Acoustic Parametric Signal Generation for Underwater Communication. Sensors 2018, 18, 2149. Campo-Valera, M.; Ardid, M.; Tortosa, D.D.; Felis, I.; Martínez-Mora, J.A.; Llorens, C.D.; Cervantes, P. Acoustic Parametric Signal Generation for Underwater Communication. Sensors 2018, 18, 2149.

Journal reference: Sensors 2018, 18, 2149
DOI: 10.3390/s18072149

## Abstract

This paper presents a study of different types of parametric signals with application to underwater acoustic communications. In all the signals, the carrier frequency is 200 kHz, which corresponds to the resonance frequency of the transducer under study and different modulations are presented and compared. In this sense, we study modulations with parametric sine sweeps (4 to 40 kHz) that represent binary codes (zeros and ones), getting closer to the application in acoustic communications. The different properties of the transmitting signals in terms of bit rate, directivity, efficiency and power needed are discussed as well.

## Subject Areas

underwater acoustic communication; parametric technique; self-demodulation